454989 has 8 divisors (see below), whose sum is σ = 623200. Its totient is φ = 295056.

The previous prime is 454973. The next prime is 454991. The reversal of 454989 is 989454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 454989 - 2⁴ = 454973 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

454989 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1939 + ... + 2160.

It is an arithmetic number, because the mean of its divisors is an integer number (77900).

2⁴⁵⁴⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

454989 is a deficient number, since it is larger than the sum of its proper divisors (168211).

454989 is a wasteful number, since it uses less digits than its factorization.

454989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139.

The product of its digits is 51840, while the sum is 39.

The square root of 454989 is about 674.5287243698. The cubic root of 454989 is about 76.9130969873.

The spelling of 454989 in words is "four hundred fifty-four thousand, nine hundred eighty-nine".